Shuttle checking device

ABSTRACT

A shuttle binder has a thin flat member and an elongated element constructed from a single unitary wooden blank, said blank having been compressed and densified by the application of heat and pressure along opposite sides thereof across said flat member so that said flat member is capable of dissipating heat and withstanding flexing and impact from the shuttle during weaving.

Q United States Patent 1 1 3,559,696

[72] Inventors Coy L. Hufiman,Jr. [56] ReferencesCited ggzoBsrooksideWay, Greenville, S.C. UNITED STATES PATENTS 856,310 6/1907 Stone 139 185s 'ggg'g g 'zgf 880,602 3/1908 Tiich 139/185 21] A No 867658 3,225,79312/1965 Huffman,Jr.etal. 139 185 3,227,188 1/1966 Bakeretal 139 185 [22]Filed Oct. 20, 1969 [45] Patented Feb. 2, I971 [54] SHUTTLE CHECKINGDEVICE 2 Claims, 3 Drawing Figs.

[52] US. Cl 139/185 D03d 49/54 l39/l 83- l 87, 157

Primary Examiner-James Kee Chi AttorneyBailey & Dority ABSTRACT: Ashuttle binder has a thin flat member and an elongated elementconstructed from a single unitary wooden blank, said blank having beencompressed and densitied by the application of heat and pressure alongopposite sides thereof across said flat member so that said flat memberis capable of dissipating heat and withstanding flexing and impact fromthe shuttle dun'ng weaving.

PATENTED FEB 2 197i fli IL v3.

, w 9 F Q V INVENTORS COY L. HUFFMAN, JR, 2, JAMES EA RL. FFMAN ATTORNEYSI-IU'ITLE CHECKING DEVICE This invention relates to a shuttle checkingdevice and more particularly to an improved unitary wooden shuttlebinder capable of operating without repair on high speed looms overextended periods of time.

This is an improvement upon the invention of U5. Pat. No. 3,225,793.

Shuttle binders covered with leather have long been used on looms. Withthe advent of high speed looms many attempts have been made to solve theproblem of excessive wear on the binder. Attempts to solve this problemhave included the use of cushioning material as well as attempts toleave an air space between portions of the binder engaged initially bythe shuttle and the remainder of the binder wood. It has been found thatexcessive heat, generated by the friction between the shuttle and theleather when the shuttle contacts the leather repeatedly at closeintervals and at high speed, accounts for a greater portion of the wear.While efforts have been made to I dissipate such heat through the use ofair spaces, none have been successful because the element receiving theshuttle and its connection to the shuttle wood are not capable ofwithstanding successive impacts by the shuttle in practical operation.

The device of the above patent functions well except for difficultieswith the means fastening the flat member to the elongated elements ofthe shuttle. Such was difficult to fabricate and did not wear well. Thisinvention contemplates the use of a unitary wooden binder constructedfrom a densified blank wherein the air space is formed between anelongated element and a thin flat member, both formed from the singleblank.

Accordingly, it is an important object of the present invention to avoidany problem in fastening the relatively thin flat member to theelongated or body element of the binder while effectively reducing heatgenerated by shuttle contact and resulting wear to the binder.

It is an important object of this invention to provide an improvedshuttle binder capable of minimizing the heat generated by many repeatedengagements with the shuttle during weaving.

Another important object of the invention is to provide a means forreducing wear on a shuttle binder capable of withstanding successiveimpacts by the shuttle during weaving without excessive wear or damage.

Another object of the invention is to provide an air space type meansfor dissipating heat generated by shuttle contact with the binder tothus minimize wear on the binder leather so that the resulting binder iscapable of operating over much longer periods without alteration, thusprolonging the life of the binder leather and reducing labor and machinedowntime.

The construction designed to carry out the invention will be hereinafterdescribed, together with other features thereof.

The invention will be more readily understood from a reading of thefollowing specification and by reference to the accompanying drawingforming a part thereof, wherein an example of the invention is shown andwherein:

FIG. 1 is a top plan view illustrating a loom shuttle constructed inaccordance with the present invention;

FIG. 2 is a top plan view of the binder mounted in a shuttle boxreceiving a shuttle during weaving; and

FIG. 3 is an enlarged transverse sectional elevation taken on the line3-3 in FIG. I.

The drawing illustrates a loom shuttle box having shuttle receivingmembers. An elongated longitudinally disposed wooden binder element Ahas a curved portion adjacent the shuttle receiving end thereof. Arelatively thin flat wooden member B substantially conforms to theshuttle receiving surface of the wooden element. It is important thatmember 8 be densified or otherwise fortified in comparison to naturalwood to the extent that good flexing and impact resisting qualities areprovided to withstand repeated impacts by the shuttle. Means C areprovided for fastening the wooden member B to the wooden element Aforwardly of the portion receiving the shuttle on initial impact, andfastening the wooden member to the wooden element adjacent the rearthereof in substantially overlying relation thereof. An air space D isdefined between the wooden element and the wooden member. The usualstrip of leather and the like, substantially covers the shuttle engagingsurface of said wooden member. The flat member B and the elongatedelement A are constructed from a single unitary wooden blank, said blankhaving been compressed and densified by the application of heat andpressure along opposite sides thereof across said flat members asillustrated at E in FIG. 3.

The loom shuttle box includes a box front 10 fastened by the usual bolts11 to the lay end plate I2 of a loom. A picker stick is designated at I3and rocks back and forth within the usual slot 14. The shuttle 15 isreceived between the binder, the elongated element or body of which isdesignated at A, and the box front I0 prior to its reception by thepicker I6, which is carried by the picker stick 13. The binder ismounted upon a pin I7 carried by the lay end plate, and a fiber bearingI8 is provided to protect the binder wood from excessive wear. A metalstrip 19 protects the butt of the binder wood and is fastened thereon asby a rivet [9a. A leaf spring 20 is fastened as by screws 21 to the layend plate, and serves to resiliently bias the free end of the binderinwardly so as to exert a checking shuttle box. A protective strip 22engages an abutment (not shown) for limiting the outward movement of thebinder responsive to the impact of the shuttle 15 when it is received. I

A flat formed wooden member B is fastened at both ends thereof on theinner shuttle receiving face of the shuttle. The member B is formed andfortified by compressing and densifying the single blank by theapplication of heat and pressure along opposite sides thereof, acrossthe flat member. The slot D is then routed out conforming to the generalconfiguration of the binder as illustrated in the drawing. It isdesirable that the member B be constructed of flat stock uniform crosssection, capable of dissipating heat and withstanding successive impactsby the shuttle during weaving. For example, such treatment of wood as isdescribed in connection with portions of a picker stick in United StatesLetters Pat. No. 2,488,301, issued Nov. I5, 1949 to C. B. Lundstrom,would be satisfactory. It has been found that densified or otherwisetreated, formed wood makes possible the provision of the air spacethrough its ability to withstand the constant flexing resulting frommany successive impacts by the shuttle. For example, if a strip of mostknown metals were used in lieu of the fiat densified wooden member, themetal would crystallize at its points of maximum flexure in the area ofcontact by the shuttle.

The means C for fastening the wooden member B to the wooden element Aare provided by the integral wooden connection resulting from therouting out of the slot from the unitary blank.

Thus, the means C fastening the flat member adjacent the forward end andadjacent the rear ends thereof consist essentially of the integratedcontinuous fibers and lignin of said unitary wooden blank, said flatmember having been formed by routing out the air space in the blankbetween the elongated element and the flat member.

It will be noted that the binder has a flat surface 28 in substantialalignment with the path of the shuttle when in boxed position. Thus, thecurve 29, in the area of initial contact by the shuttle is not sopronounced as is normally the case with other shuttle binders. Thisresults in minimum lateral displacement of the shuttle wood duringboxing and a maximum area of engagement by the binder leather 30 withthe shuttle rearwardly of the curve. This is important because whenconventional binders are displaced on engagement by the shuttle oninitial impact and return no checking or shuttle receiving or engagingsurface is available except that adjacent the curve. The binder leather30 is suitably fastened over the member B as by suitable adhesive (notshown). By reference to FIG. 2, it will be noted that the air space Dtends to close upon engagement by the shuttle and that such closingcontinues as the shuttle progresses into the box to be received by thepicker I6.

The portion of the binder wood rearwardly of the crest of the curve 29is preferably of generally uniform cross section as described above andillustrated in the drawing.

While a preferred embodiment of the invention has been described usingspecific terms. such description is for illustrative purposes only. andit is to be understood that changes and variations may be made withoutdeparting from the spirit or scope of the following claims.

We claim:

I. For use in a loom shuttle box. a shuttle binder compris ing. anelongated longitudinally disposed element ha ing a curved portionadjacent a shuttle receiving end thereof for receiving the shuttle oninitial impact. and an inner substantially flat surface extendingrearwardly therefrom substantially in alignment with the elongatedelement so that the adjacent portion of the elongated element has asubstantially uniform cross section. a relatively thin flat formedmember substantially conforming to the inner surface of the elongatedelement. said thin flat member and said elongated element beingconstructed from a single unitary wooden blank said blank having beencompressed and densiflcd by the application of heat and pressure alongopposite sides thereof across said flat member so that said flat memberis capableofdissipating hea and withstanding flexing and impact from theshuttle durin; weaving. means fastening the thin flat member to the elongated element adjacent the forward end of the elongated ele ment. meansfastening the thin flat member to the elongatet element adjacent therear end thereof. each of said mean:

fastening the thin flat member resisting thrust longitudinally o thethin flat member caused by engagement of the binder b3 the Shuttle. saidthin l'lat member being in substantially overly ing relationship to theelongated element. an air spact between the elongated element and thethin flat member ex tending between themeans fastening the thin flatmember ad jacent the ends thereof and a shuttle engaging leatherlikestri; substantially covering the thin flat member.

2. The structure set forth in claim I. wherein said mean: fastening theflat member adjacent the forward end and ad jacent the rear ends thereofconsist essentially of the in tegrated continuous fibers and lignin ofsaid unitary wooder blank. said flat member having been formed byrouting out thiair space in the blank between the elongated element andtht flat member.

1. For use in a loom shuttle box, a shuttle binder comprising, anelongated longitudinally disposed element having a curved portionadjacent a shuttle receiving end thereof for receiving the shuttle oninitial impact, and an inner substantially flat surface extendingrearwardly therefrom substantially in alignment with the elongatedelement so that the adjacent portion of the elongated element has asubstantially uniform cross section, a relatively thin flat formedmember substantially conforming to the inner surface of the elongatedelement, said thin flat member and said elongated element beingconstructed from a single unitary wooden blank, said blank having beencompressed and densified by the application of heat and pressure alongopposite sides thereof across said flat member so that said flat memberis capable of dissipating heat and withstanding flexing and impact fromthe shuttle during weaving, means fastening the thin flat member to theelongated element adjacent the forward end of the elongated element,means fastening the thin flat member to the elongated element adjacentthe rear end thereof, each of said means fastening the thin flat memberresisting thrust longitudinally of the thin flat member caused byengagement of the binder by the shuttle, said thin flat member being insubstantially overlying relationship to the elongated element, an airspace between the elongated element and the thin flat member extendingbetween the means fastening the thin flat member adjacent the endsthereof and a shuttle engaging leatherlike strip substantially coveringthe thin flat member.
 2. The structure set forth in claim 1, whereinsaid means fastening the flat member adjacent the forward end andadjacent the rear ends thereof consist essentially of the integratedcontinuous fibers and lignin of said unitary wooden blank, said flatmember having been formed by routing out the air space in the blankbetween the elongated element and the flat member.